Understanding of thermal/thermo-oxidative degradation kinetics of polythiophene nanoparticles
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- 作者：Omid Zabihi (1)
Aminreza Khodabandeh (1) - 关键词：Polythiophene ; Nanoparticles ; Thermal degradation ; Solid ; state mechanism ; Master curves
- 刊名：Journal of Thermal Analysis and Calorimetry
- 出版年：2013
- 出版时间：June 2013
- 年：2013
- 卷：112
- 期：3
- 页码：1507-1513
- 全文大小：569KB
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Aminreza Khodabandeh (1)
1. Young Researchers Club, Science and Research Branch, Islamic Azad University, Tehran, Iran - ISSN：1572-8943
文摘
The polythiophene nanoparticles (nano-PT) were prepared with average diameter of 20-5?nm. The nanostructurals of polythiophene were confirmed by TEM and SEM analyzes. The kinetics of the thermal degradation and thermal oxidative degradation of nano-PT were investigated by thermogravimetric analysis. Kissinger method, Flynn–Wall–Ozawa method, and advanced isoconversional method have been used to determine the activation energies of nano-PT degradation. The results showed that the thermal stability of nano-PT in pure N2 is higher than that in air atmosphere. The analyzes of the solid-state processes mechanism of nano-PT by Criado et al. method showed: the thermal degradation process of nano-PT goes to a mechanism involving second-order (F 2 mechanism); otherwise, the thermo-oxidative degradation process of nano-PT is corresponding to a phase boundary controlled reaction mechanism (R 2 mechanism).